help tor2web work better

tor2web complains of abysmal performance on (some) hidden services. Helping them improve their performance and stability could be a good way to better understand what's going wrong with hidden services. Plus it will help them popularize the overall concept.

Another thing is that the tor2web folks should really talk to us more about the kind of torrc options they set. There's evidence that they set some stuff "because it sounded like a good idea" and then it turned out to be potentially horrible.